47693447 has 4 divisors (see below), whose sum is σ = 47714520. Its totient is φ = 47672376.

The previous prime is 47693389. The next prime is 47693461. The reversal of 47693447 is 74439674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74439674 = 2 ⋅37219837.

It is a cyclic number.

It is not a de Polignac number, because 47693447 - 2⁶ = 47693383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47693398 and 47693407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47693497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6668 + ... + 11825.

It is an arithmetic number, because the mean of its divisors is an integer number (11928630).

Almost surely, 2^47693447 is an apocalyptic number.

47693447 is a deficient number, since it is larger than the sum of its proper divisors (21073).

47693447 is a wasteful number, since it uses less digits than its factorization.

47693447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21072.

The product of its digits is 508032, while the sum is 44.

The square root of 47693447 is about 6906.0442367538. The cubic root of 47693447 is about 362.6487937723.

The spelling of 47693447 in words is "forty-seven million, six hundred ninety-three thousand, four hundred forty-seven".